Buren Caliber 410

Brand	Buren
Caliber Number	410
Movement Type	Manual wind, mechanical
Diameter	10.5”’ (23.3mm)
Height	4mm
Jewels	15
Power Reserve	38 hours
Vibrations Per Hour	18,000 bph
Balance Staff	U1607
Hairspring	ZFL1348
Hands	1.35 / 0.70 / 0.15
Features	Hours, minutes, small seconds
Country of Manufacture	Switzerland
Production Years	1940s
Known Models	Grand Prix

The Buren caliber 410 was produced in the 1940s and found in a Buren Grand Prix watch. There are two variations of this movement: the 410 has a small second sundial and the 411 which has a sweep second. The example shows above is a caliber 410.

Buren was founded in the Swiss town of Büren an der Aare in 1898, but it wasn’t until around 1916 that the company started to call itself Buren Watch Co. Until this time, they mostly produced pocket watches and table clocks. They were the inventors of the micro-rotor and a list of other calibers. Then, in 1966, history happened. Buren was sold to the Hamilton Watch company and began taking over US production of Hamilton watches. This continued until 1972 when Buren was sold off entirely.

Please share your experiences and thoughts about the caliber 410 in the comments section below…

Caliber submitted by wahawatches.com